Table 2.

Characteristics of the Analytic Sample at Baseline, Second and Third Wave

	Baseline : 7 months before the disaster (August, 2010)				Second wave: 2.5 years after the disaster (October, 2013)				Third wave: 5.5 years after the disaster (November, 2016)
	n	%	Mean	SD	n	%	Mean	SD	n	%	Mean	SD
Cognitive impairment level
Independent	2706	100			2572	95.1			2355	87.0
I	0	0			82	3.0			196	7.2
IIa	0	0			11	0.4			45	1.7
IIb	0	0			31	1.2			71	2.6
IIIa	0	0			7	0.3			29	1.1
IIIb	0	0			3	0.1			9	0.3
IV	0	0			0	0			1	0.1
M a	0	0			0	0			0	0
Housing damageb
No damage					1066	39.3
Affected					1176	43.5
Minor					194	7.2
Major					99	3.7
Destroyed					109	4.0
Missing					62	2.3
Housing status at 3rd wave c
No relocation									2640	97.5
Private new housing									35	1.3
Government provided housing									31	1.2
Loss of relatives and/or friendsb
No					1651	61.0
Yes					1055	39.0
Age
(Continuous, years)	2706	100	72.6	5.56	2706	100	75.8	5.57	2706	100	78.9	5.57
Sex c
Male	1187	43.9
Female	1519	56.1
Equivalized income
(Continuous, 10,000 JPY)	2271	83.9	231.50	137.31	2324	85.9	220.06	134.21	1975	73.0	216.83	139.99
Missing	435	16.1			382	14.1			731	27.0
Education d
1: <6 y – 4: ≥13 y	2631	97.2	2.88	0.75
Missing	75	2.8
Divorce or widowed
No	2015	74.5			1931	71.4			1760	65.0
Yes	615	22.7			737	27.2			825	30.5
Missing	76	2.8			38	1.4			121	4.5
Employment
No	1939	71.6			2257	83.4			1792	66.2
Yes	465	17.2			373	13.8			283	10.5
Missing	302	11.2			76	2.8			631	23.3
Current drinking
No	1609	59.5			1765	65.2			1671	61.8
Yes	1046	38.7			924	34.2			842	31.1
Missing	51	1.9			17	0.6			193	7.1
Current smoking
No	2222	82.1			2472	91.4			2348	86.7
Yes	282	10.4			217	8.0			197	7.3
Missing	202	7.5			17	0.6			161	6.0
Depressive symptoms
4 points or below	1682	62.2			1675	61.9			1413	52.2
5 points or above	688	25.4			714	26.4			589	21.8
Missing	336	12.4			317	11.7			704	26.0
Stroke
No	1989	73.4			2172	80.2			2203	81.4
Yes	50	1.9			110	4.1			119	4.4
Missing	667	24.7			424	15.7			384	14.2
Diabetes
No	1707	63.0			1919	70.9			1934	71.5
Yes	332	12.3			363	13.4			388	14.3
Missing	667	24.7			424	15.7			384	14.2
Frequency meeting with friends
1: ≥ 4/weeks – 6: Rarely	2615	96.6	3.24	1.44	2675	98.9	3.28	1.51	2572	95.0	3.42	1.55
Missing	91	3.4			31	1.1			134	5.0
Frequency of interactions with neighbors
1: Frequently – 4: None	2632	97.3	1.95	0.66	2687	99.3	2.02	0.67	2625	97.0	2.04	0.71
Missing	74	2.7			19	0.7			81	3.0
Walking time per day
1: ≥ 90 min. – 4: < 30 min.	2604	96.2	2.92	1.02	2677	98.9	2.86	1.02	2530	93.5	2.98	1.03
Missing	102	3.8			29	1.1			176	6.5

^aNeeds special medical treatments

^{b, c}Measured at only the second/third wave

^{c, d}Empty cells due to time-invariant variables.

Abbreviations: JPY, Japanese Yen.